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Central angle


A central angle is an angle whose apex (vertex) is the center O of a circle and whose legs (sides) are radii intersecting the circle in two distinct points A and B.

Central angle of a circle - Math Open Reference


Given two points A and B, lines from them to center of the circle form the central angle ∠AOB. The central angle is the smaller of the two at the center. It does not  ...

Finding central angle measure given arc length | Circle arcs and ...


After viewing the videos here on circles and arcs, the first question I had to try and solve used radians instead of degrees for the measure of the central angle.

Central Angle of a Circle. Illustrated explanation with interactive ...


The central angle of a circle is the angle based at the circle's center. In other words, the vertex of the angle must be at the center of the circle. A central angle is  ...

Central Angle -- from Wolfram MathWorld


A central angle in a circle determines an arc arcAC . CentralInscribedAngle. For an inscribed angle ∠ABC and central angle ∠AOC with the same endpoints, ...

What is a Central Angle? - Definition, Theorem & Formula | Study.com


In this lesson, you will learn about the definition and properties of a central angle. You will also discover what the Central Angle Theorem is and...

Central-angle | Define Central-angle at Dictionary.com


Central-angle definition, an angle formed at the center of a circle by two radii. See more.

What is a Sector and Central Angle? | Virtual Nerd


Note: Just about everything in math has a name! Did you know that a fraction of the area of a circle is known as a sector? This tutorial introduces you to the term ...

Central Angles and Intercepted Arcs - Concept - Geometry Video by ...


A central angle is an angle whose vertex is on the center of the circle and whose endpoints are on the circle. The endpoints on the circle are also the endpoints ...

Circles - angles formed by radii, chords, tangents, secants


Formulas for Angles in Circles Formed by Radii, Chords, Tangents, Secants ... A central angle is an angle formed by two intersecting radii such that its vertex is ...

Popular Q&A
Q: What is a central angle?
A: Central Angle An angle in a circle with vertex at the circle's center. Read More »
Source: wiki.answers.com
Q: What is the central angle of a polygon?
A: Central angle of a regular polygon is 360/n. n is the number of sides. Read More »
Source: wiki.answers.com
Q: What is the central angle formula.
A: 360/# of sides. Read More »
Source: www.answers.com
Q: What is central angle?
A: n. An angle having its vertex at the center of a circle. Read More »
Source: www.answers.com
Q: What is the measure of a central angle?
A: The central angle of a circle is an angle whose vertex is the circle's Read More »
Source: www.chacha.com